考虑事故-经济重构共同影响的配电网智能终端规划  

Intelligent Terminal Planning Strategy Considering Reliability and Economy Reconfiguration for Distribution Network

作　　者：吕小东 高红均[1] 叶圣永 李海波 杨睿[1] 刘俊勇[1] 孙洪剑 LYU Xiaodong;GAO Hongjun;YE Shengyong;LI Haibo;YANG Rui;LIU Junyong;SUN Hongjian(College of Electrical Engineering,Sichuan University,Chengdu 610065,Sichuan Province,China;State Grid Sichuan Economic Research Institute,Chengdu 610041,Sichuan Province,China;Sichuan Energy Internet Research Institute,Tsinghua University,Chengdu 610042,Sichuan Province,China;School of Engineering and Computing Sciences,Durham University,Durham DH13LE,UK)

机构地区：[1]四川大学电气工程学院,四川省成都市610065 [2]国网四川省电力公司经济技术研究院,四川省成都市610041 [3]清华四川能源互联网研究院,四川省成都市610042 [4]杜伦大学工程与计算科学学院,英国杜伦DH13LE

出　　处：《中国电机工程学报》2022年第2期589-602,共14页Proceedings of the CSEE

基　　金：国家重点研发计划项目(2019YFE0123600);国家自然科学基金项目(51807125);国家电网公司科技项目(SGIT0000YXJS 1900324)。

摘　　要：随着智能电网建设的不断推进,信息系统与配电物理系统不断深入耦合,配电自动化程度势必越来越高,智能终端的规划设计在配电自动化建设发展中显得尤为重要。基于此,建立考虑事故-经济重构共同影响下的配电网智能终端双层规划模型。上层模型为系统综合投资成本和运行成本综合最优进行“二遥”(集遥信和遥测功能于一体的智能终端)、“三遥”(集遥信、遥测和遥控功能于一体的智能终端)终端选址、选型以及光缆铺设规划建模。基于上层规划结果,下层事故重构部分基于多场景事故停运时间分解法,结合各类可转移负荷的负荷-电源转移路径上智能终端配置状态,计及断路器是否支持遥控对系统可靠性造成的影响等,建立配电系统可靠性评估量化模型;下层经济重构部分则计及潮流约束、安全约束、拓扑约束和开关动作约束从而建立基于二阶锥松弛(second order cone programming,SOCP)的动态混合整数线性模型以分析规划结果在系统正常运行时的经济性。最终,整个双层模型采用离散二进制粒子群算法(discrete binary particle swarm optimization algorithm,BPSO)进行优化求解,并先后通过IEEE 33节点和152节点算例验证规划方法的有效性。With the continuous promotion of the construction of smart grid and the in-depth coupling between cyber system and distribution physical system,the degree of distribution automation is bound to be higher and higher,and the planning strategy of intelligent terminal becomes increasingly important in the development of distribution automation.Based on this,a bi-level planning model of distribution network intelligent terminal was established considering the influence of reliability and economy reconfiguration.The upper level is the comprehensive optimization of the comprehensive investment cost and operation cost of the system,so as to carry out the location planning modeling and type-selection planning modeling of the intelligent terminals as well as the optical cable laying planning modeling.Based on the results of the upper level planning,the lower level reliability reconfiguration part is based on the multi-scenario accident outage time decomposition method.Combined with the results of intelligent terminal configuration on the load-power transfer path of all kinds of transferable load,considering the influence of remote control on system reliability caused by whether the circuit breaker supports remote control or not,a quantitative model for reliability evaluation of distribution system was established.The lower level economy reconfiguration part took into account power flow constraints,security constraints,topology constraints and switching action constraints to establish a dynamic mixed integer linear model based on second order cone programming(SOCP)to analyze the economy of the planning results in the normal operation of the system.Finally,this bi-level model was optimized by discrete binary particle swarm optimization algorithm(BPSO),and the effectiveness of the planning method was verified based on an IEEE-33 system and a Bus-152 system.

关 键 词：智能电网 智能终端 配电网重构 优化配置 

分 类 号：TM732[电气工程—电力系统及自动化]